Publications by authors named "Lorena Valls-Gonzalez"

Introduction: Ureteral stent placement during laparoscopic pyeloplasty is a common procedure in pediatric patients. Although an apparently safe maneuver, ascending placement of the stent can lead to complex removal or repositioning reinterventions.

Objective: In this study we compare two methods for intraoperative verification of correct positioning.

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Article Synopsis
  • Studies question the use of laparoscopic pyeloplasty in infants due to complication rates, but meta-analyses indicate it's safe and effective.
  • Laparoscopic surgery offers advantages like better vessel visualization, less invasive dissection, and smaller scars compared to open surgery.
  • Experienced urologists and pediatric surgeons can rely on data to support the effectiveness and safety of using laparoscopic techniques for pyeloplasties in infants.
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Introduction: Ureteropelvic junction obstruction (UPJO) is the most common cause of congenital hydronephrosis. Techniques such as laparoscopic pyeloplasty (LP) have gained in popularity over recent years. Although some retrospective studies have compared minimally invasive reconstructive techniques with open surgery for treatment of UPJO in infants, results remain controversial due to the small sample size in most of these studies.

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Introduction: In this work, we present two cases of heminephrectomies with postoperative findings of cystic lesions in the bed of the excised renal segment.

Material And Methods: Description of the clinical cases, therapeutic management and description of the ultrasound findings. A review of the published cases was carried out.

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Introduction: We show the ability of early ultrasound after surgery to show the success of endoscopic puncture of the ureterocele.

Method: Description of the clinical cases, therapeutic management and description of the ultrasound findings.

Results: We present two infants aged 1 and 4 months who underwent endoscopic puncture of ectopic ureteroceles during a period of 3 months at our institution.

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Introduction: The study aimed to present the outcomes of an endoureterotomy series using the Lovaco technique for the treatment of ureterointestinal strictures. Factors influencing the success or failure of this technique were also determined.

Materials And Methods: Data were collected from all endoureterotomies for ureterointestinal strictures performed in a single-center between 2017 and 2020.

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Objective: The treatment of the ectopic ureter in the pediatric patient must be individualized in each caseMETHOD: Description of clinical cases, therapeutic management and evolution of patients.

Results: We present four pediatric patients with ectopic ureters who underwent surgery. We describe a case of laparoscopic nephroureterectomy, one of laparoscopic uretero-ureterostomy, one of bilateral ureteral reimplantation and another of unilateral reimplantation.

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Introduction: OHVIRA syndrome is a rare entity characterized by renal and Mullerian anomalies. The objective of the video is, through a clinical case, to discuss the importance of diagnosis, management and treatment, to avoid the complications that this syndrome entails, and to improve the long-term prognosis.

Materials And Methods: We report the case of a 10-year-old girl who consulted for abdominal pain, being diagnosed with OHVIRA syndrome.

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Objective: To describe holmium laser endoureterotomy with the Lovaco technique for the treatment of ureterointestinal stenosis. This common problem after cystectomy represents a surgical challenge, with endourological techniques being useful in this context. We present a technique that has been described before, but which we consider useful and decisive.

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Introduction: We sought to investigate three different antibiotic protocols in transurethral resection of a bladder tumour (TURBT), and the possible infectious risk factors of this surgery.

Methods: We conducted a non-randomized, prospective study, gathering cases of patients in whom TURBT had been performed. The sample was divided into three groups based on those who received antibiotics as: a single preoperative dose (Group A); a preoperative dose, plus a long protocol during the hospitalization (Group B); a preoperative dose, plus a long protocol during the hospitalization, plus five days at home (Group C).

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Objectives: To analyze the predictive factors for retreatment in RIRS to achieve complete lithiasis resolution.

Methods: Retrospective comparative study analyzing 298 cases of RIRS performed in our center over a 3 year period. The cohort was divided in two groups: Resolution in one operation or more than one, evaluating homogeneicity for age and gender.

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Objectives: The objective of this article is to show the current situation regarding two surgical techniques for the treatment of renal lithiasis, RIRS (Retrograde intrarenal surgery) and PCNL (Percutaneous nephrolithotomy), specially concerning the larger size stones. We perform a literature review on the topic and add the experience with both techniques at our center. Besides, we also analyze the role of RIRS in comparison with the percutaneous techniques in smaller size lithiasis.

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Objectives: PSA is a frequently used marker in the daily clinical practice for the diagnosis and management of prostate cancer. We analysed the use of PSA in our health department in patients with and without prostate cancer diagnosis.

Methods: The registry of all PSA petitions in our health department during 2011 and 2012 was used.

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